Home / 1,986,161.76-2,976,909.48-918,948.96

Finding the Fourth Proportional to 1,986,161.76, 2,976,909.48 and 918,948.96

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Solution

The fourth proportional to 1,986,161.76, 2,976,909.48 and 918,948.96 is: 1,377,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,161.76 : 2,976,909.48 = 918,948.96 : x
  2. Step 2: Convert to fraction form
    1,986,161.76/2,976,909.48 = 918,948.96/x
  3. Step 3: Cross multiply
    1,986,161.76x = 2,976,909.48 × 918,948.96
  4. Step 4: Simplify right side
    1,986,161.76x = 2,735,627,870,660.14
  5. Step 5: Solve for x
    x = 2,735,627,870,660.14/1,986,161.76
  6. Step 6: Final answer
    x = 1,377,343.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.